Trolley.



No. 870,950. PATENTED NOV. 12, 1907,

w. P. GISSKE.

TROLLEY.

APPLICATION FILED APR. 10, 1907.

n1: NORRIS PETERS co., WASHINGION, 04 c.

of trolley wire.

WALTER P. GISSKE, OF LOS ANGELES, CALIFORNIA.

TROLLEY.

Specification of Letters Patent.

Patented Nov. 12, 1907.

. Application filed Ap il 101907- Serial No. 367,454.

To all whom it may concern:

Be it known that I, WALTER P. GISSKE, a native of Switzerland, residing at 719 N. Hill street, Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Trolley, of which the following is a specification.

My invention relates to improvements in trolleys and the object of my invention is to provide means where by a trolley wheel, thrown or slipping from a trolley wire will regain its normal position, without the necessary inconvenience of putting said trolley wheel on the wire by hand, with the resulting stoppage of car. I attain this object by the mechanism illustrated in the accompanying drawing in which Figure 1is a side view of my device, Fig. 2is a plan view partly in section and Fig. 3is a section on line 33 of Fig. 2.

Similar letters refer to similar parts throughout the several views.

The end of a trolley pole is provided with a fork A. in each side of which are guide-ways B. Said ways having vertical guides C. on which are slidably mounted spring pressed vertically operated blocks D. Held in blocks D. is shaft E. on which are mounted side plates F. having arms G. for the purpose hereinafter described.

At the sides of fork A. I provide barrels a. in which are placed coiled springs a. The upper ends of which bear against slidable blocks D. Projecting from the edge of side plates F. and integral therewith are pins or lugs H. which bear against rollers h. fastened in fork A. of the device.

Across the top of ways B. are screwed small plates J. to limit the upward movement of blocks D. and the shaft E. and the parts mounted thereon.

When the trolley wheel from any cause leaves the wire the springs a. whieh are held in compression by thepressure of the trolley wire downwardly through the medium of shaft E. and blocks D., said springs will be released and force said blocks upwardly. The lug on lower and inner side of plate F. will be forced against roller h. in fork A. and thereby cause side plate F. to turn on shaft E. and throw arms G. upwardly each side As these arms are raised quickly, it will readily be seen that the inside surface of one arm or the other, as the case may be, will press against trolley wire and forcibly restore the mechanism to its normal position. When this action takes place the pressure of the wire on the wheel 13 and shaft IE. will force blocks D. and spring a. into their normal positions and ready for the next operation. Arms G. resuming their lower positions by gravity.

Fig. 1. I have shown in dotted lines the position which the trolley wheel may be centered under the trol ley wire when the trolley is swung from one end of the car to the other. The inner edge of arm striking the wire and centering the wheel.

What I claim and desire to secure by Letters Patent is:

1. A pair of plates or arms having lugs contacting with rollers fastened in a fork for the purpose of transmitting a circular movement to said plates or arms, when said plates or arms are raised vertically by shaft on which they are mounted.

2. A pair of arms mounted on a shaft operated vertically by coiled springs and circularly by roller pressed lugs projecting from hubs of said arms.

3. A fork containing rollers on the inside thereof controlling the movement of arms mounted on a trolley wheel shaft, said shaft being limited in its upward movement by plates fastened over ways in said fork, said ways containing sliding blocks in which said shaft is loosely mounted.

4. The combination with a trolley harp, provided with guideways and spring actuated blocks in said guideways; rollers journaled in said harp and a plurality of plates in operative relation to said rollers, said plates being adapted to be forced upwardly when the trolley wheel is disengaged from the wire.

A plurality of plates provided with lugs, in combination with a trolley harp, provided with rollers against which said lugs are adapted to impinge and means to impart upward travel to said plates.

WALTER I. GISSKE.

Witnesses:

Ln'rn S. ALTER, HARRY SCIINACKENBECK. 

